<html>
<div>Button
<button type="button" onclick = "display()">Click Me!</button>
</div>

<img id="jerry_image" src= "https://www.sap.com/dam/application/imagelibrary/photos/278000/278261.jpg.adapt.450_255.false.false.false.false.jpg"></img>
<script src="jQuery/jquery1.7.1.js"> 
</script>

<script>
   function display() {
   		alert("button clicked!");
   };
   console.time("image");
   $("#jerry_image").load(function() {
   	 console.timeEnd("image");
   	 console.log("Jerry image load ok");
   });

 $(document).ready( function() {
   console.log("ok");
});
</script> 
</html>